– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Wed 15 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Wed 15 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Wed 15 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 6mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 7°C on Fri afternoon, min -1°C on Wed night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 7°C on Sat morning). Wind will be generally light. | |||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | |  | | | | | | |  | |  | |
some clouds | risk tstorm | snow shwrs | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | some clouds | some clouds | some clouds | rain shwrs | some clouds | some clouds | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | 5 | — | 0.4 | 0.5 | 0.1 | 0.1 | 0.2 | — | — | — | 0.1 | — | — | — | — | — | — | |
max °C | 2 | 3 | 0 | 3 | 5 | 2 | 4 | 7 | 4 | 10 | 12 | 9 | 15 | 17 | 13 | 17 | 21 | 17 |
min °C | 0 | 2 | -1 | 1 | 4 | 0 | 2 | 5 | 4 | 7 | 12 | 9 | 11 | 17 | 11 | 14 | 20 | 15 |
0 | 0 | -1 | 1 | 3 | 0 | 2 | 5 | 4 | 6 | 12 | 8 | 11 | 17 | 11 | 14 | 20 | 15 | |
700 | 850 | 350 | 850 | 1150 | 600 | 1050 | 1300 | 1850 | 2100 | 2250 | 2650 | 2750 | 2800 | 2950 | 3100 | 3200 | 3250 | |
Cloud base (m) | 550 | 650 | 700 | 600 | 650 | 700 | 600 | 700 | 600 | 600 | 3350 | 3200 | 3400 | 9000 | ||||
 | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — |
 | — | 7:59 | — | — | — | 8:00 | — | — | 8:01 | — | — | 8:02 | — | — | 8:04 | — | — | 8:06 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 7°C on Fri afternoon, min -1°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 21°C on Mon afternoon, min 7°C on Sat morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.